The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 15, 1990
Filed:
May. 24, 1988
Applicant:
Inventors:
Assignee:
Yoshida Kogyo K. K., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A44B / ;
U.S. Cl.
CPC ...
24392 ; 24393 ; 66190 ; 66202 ; 1393 / ;
Abstract
A stretchable slide fastener includes a pair of stretchable stringer tapes each having a longitudinal edge, and a row of coupling elements mounted on the longitudinal edge at a pitch. The pitch of the row of coupling elements is variable as the longitudinal edge is stretched. Each of the coupling elements includes a coupling head having a height, and at least the longitudinal edge being longitudinally stretchable by at least 10% such that the pitch of the coupling elements remains smaller than an interval which is twice the height of the coupling head.